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From "Maxim Khutornenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AURORA-263) Support a min guaranteed task history retention period
Date Fri, 14 Mar 2014 22:54:47 GMT

    [ https://issues.apache.org/jira/browse/AURORA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13935778#comment-13935778
] 

Maxim Khutornenko commented on AURORA-263:
------------------------------------------

https://reviews.apache.org/r/19243/

> Support a min guaranteed task history retention period
> ------------------------------------------------------
>
>                 Key: AURORA-263
>                 URL: https://issues.apache.org/jira/browse/AURORA-263
>             Project: Aurora
>          Issue Type: Task
>          Components: Scheduler
>            Reporter: Maxim Khutornenko
>            Assignee: Maxim Khutornenko
>
> Task history currently does not deliver any retention guarantees beyond a max of 100
tasks per job over at most 2 days (whichever comes first). This makes any immediate event
processing (i.e. SLA monitoring) impossible under heavy turn over. 
> Have the HistoryPrunner support a min configurable retention period (e.g. 2 minutes)
to mitigate the above problem. The risk of overloading mem store is minimal due to throttling
of flapping tasks.   



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